Elevator



- J.W.MOORE July 27 1926.

ELEVATOR Filed amyi 5 M65 Wflfoore,

BY W

A'l IORNEY Patented July 27, 192%.

UNITED STATES JAMEs'w. MOORE, or SPDKANE, wasnmerou.

ELEVATOR.

Application filed July 13, 1925.

This invent-ion relates to improvements in elevators, the general object of the invention being to provide an air cushion at the bottom of the elevator shaft to check the drop of the elevator if the hoisting means thereof should fail to function and the elevator should drop to the bottom of the shaft, thus preventing injury to the occupants and damage to the elevator parts.

Another object of the invention is to provide an air container in the bottom of the shaft with means for puncturing the same by the falling elevator which will increase the effect.

This invention also consists in certain other features of construction and in the combination and arrangement of the several parts, to be hereinafter fully described, illus trated in the accompanying drawings and specifically pointed out in the appended claims.

In describing my invention in detail, ref erence will be had to the accompanying drawings wherein like characters denote like or corresponding parts throughout the several views, and in which:

Figure 1 is a sectional view through an elevator shaft and the elevator or car therein.

Figure 2 is a section on line 22 of Fig- 30 ure 1.

Figure 3 is a detail perspective view of the lower portion of the car.

In these views, 1 indicates the elevator shaft and 2 the lower part or well thereof. As shown, this well is of less cross sectional area than that of the shaft and it is provided with a lining 3, the lining flaring outwardly at its upper end, as shown at 4, where it merges into the shaft. The well is provided with oppositely arranged recesses 5 in its side walls into which extend the guides 6 for the elevator or car 7. The lowerpart of this car has channel irons 8 fastened thereto, the outer irons extending along the four sides of the car and the inner irons forming braces for the outer ones. A bot' tom plate 9 is fastened to the irons and said irons, together with said plate 9 and the bottom of the car form a chamber 10 which is surrounded by an outer chamber 11 which is formed by the outer channel irons. The plate 9 is provided with the holes 12 and the outer channel irons are provided with the holes 13 so that the chamber 11 is in communication with the chamber 10 and Serial No. 43,335.

said chamber 10 is in communication with the shaft through the holes 12. Channel beams 14 are movably mounted in the chambers 11 and these beams carry resilient strips 15 and stems 16 are fastened to the beams 14 and extend through holes in the channel irons 8 and receive springs 17 which tend to hold the beams 14- and the strips 15 withii the chambers 11. However, when the eleva tor or car enters the well, the air trapped in the well by the car entering the same will pass into the chamber 10 through the openings 12 and into the chambers 11 through the openings 13 and will thus force the beams 14 with the strips 15 outwardly, so that the strips will firmly engage the lining 8 of the well and prevent the escape of air from between the car and the walls of the well. This will trap the air in the well and cause this air to act as a cushion to check the fall of the car.

In order to increase the cushioning effect, I place a container 18 in the well which is formed of canvas or the like and into which air is forced from any suitable source by means of the pipe 19 which is connected with the container. Pointed members 20 are arranged on the bottom part of the car which are designed to puncture the container 18 when the car enters the well so as to free the air in the container, which will help the air already in the well to check the fall of the car.

I also place a vent pipe 21 in the well which is provided with a valve 22 so that the amount of air trapped in the well can be regulated.

It is thought from the foregoing description that the advantages and novel features of my invention will be readily apparent.

I desire it to be understood that I may make changes in the construction and in the combination and arrangement of the several parts, provided that such changes fall within the scope of the appended claims.

What I claim is 1. In combination with an elevator car and shaft, a well formed in the lower end of the shaft, packing means carried by the car, and means for moving the packing means outwardly when the car enters the well.

2. In combination with an elevator car and shaft, a well formed in the lower end of the shaft, packing means carried by the car and means for causing some of the air trapped in the well to force the packing make a tight-joint when the car enters the means outwardly when the car enters the Well, an air container in the Well, means for well. forcing air into the same and means on the 10 3. In combination with an elevator car car for puncturing the container when the 5 and shaft, a well formed in the lower end car enters the well,

of the shaft, packing means carried by the In testimony whereof I affix my signature. car and engaging the walls of the well to JAMES XV. MOORE. 

